The seat on my Cat 307 rocked badly and it bothered me so I fixed it. I had never seen a seat slide assembly with these rollers made from springs. Didn't seem to have worked very well. So I made some slides/spacers out of UHMWPE. Has to be better than the seat slapping up and down.
nice fix. that will drive you batty trying to dig around a structure while holding yourself steady.
Nice repair.